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Numerical optimisation for induction heat treatment processes

Abstract : This paper aims at introducing new approaches for designing and optimising induction heat treatment processes. Although the final objectives of induction heating processes may deal with some specific mechanical or metallurgical properties for manufactured parts, we shall primarily focus here on achieving an accurate control of temperature distribution and evolution in the Heat Affected Zone (HAZ). This objective can be formalised as a classical optimisation problem: we seek to minimise a cost function which measures the difference between computed and goal temperatures - along with some constraints on process parameters. We deal here with both zero-order algorithms - using a method based on Efficient Global Optimization algorithm which is an optimisation procedure assisted by a meta model - as well as first-order algorithms. These algorithms have been coupled with 2-D and 3-D finite element models developed in our laboratory; this model is based on a coupling procedure between Maxwell equations and heat transfer models, and has been extended to mechanical and metallurgical computations.
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Submitted on : Tuesday, June 19, 2012 - 10:56:37 AM
Last modification on : Wednesday, October 14, 2020 - 3:48:09 AM

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Raphaëlle Naar, François Bay. Numerical optimisation for induction heat treatment processes. Applied Mathematical Modelling, Elsevier, 2013, 37 (4), pp.2074-2085. ⟨10.1016/j.apm.2012.04.058⟩. ⟨hal-00709655⟩

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